Bild mitTanker
  • Super Concentrate of most powerful detergents
  • Wide range of application
  • Not corrosive to tank materials or coatings

Dr Verwey's Tank Cleaning Guide

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  • New edition available
  • Contact your nautical bookseller

Tank Cleaning Guide

  • Tank Cleaning Recipes
  • Cargo Data
  • Tank Cleaning Seminar

3D Database

  • Vetting & HSE monitoring
  • All shipboard defciencies
  • SIRE, CDI, PSC Reports
  • Incidents, Accidents, Complaints

Minimum prewash quantity calculation

Automatic calculation of the minimum prewash quntity according to Marpol Annex II. Just the tank volume and the residual quantity as per P&A Manual and if appropriate, the cargo melting point or viscoity has to be entered. All other data are retrieved from the tankcleaning database. Result of the calculation is the minimum prewash quantity in m³.